| Main Menu
Online
|
|
Posted by: TecSpectr on Sunday, July 19, 2009 - 09:31 PM
General
|
An exciter, also commonly called a “transmitter”, takes an audio feed, and turns it into a radio wave. All FM exciters operate on the same essential principle. First an oscillator produces a “very high” frequency carrier wave – somewhere between 88000 and 108000 cycles per second. An audio signal is then used to dynamically “modulate” the carrier wave, causing slight variations in that frequency. Most exciters make use of at least one RF amplifier stage to amplify the modulated carrier wave (radio wave). Finally, the radio wave is used to vibrate an antenna. If done well, those vibrations will travel about until they reach your receiver’s antenna.
|
|
Read full article: 'Choosing An Exciter' (5582 bytes more)
|
|
Posted by: TecSpectr on Sunday, July 19, 2009 - 08:28 PM
General
|
There are definitely a dozen or more reasons why people build and operate pirate radio stations. These reasons range from noble to ignoble, from practical to bizarre. And if you’re reading this, you’re probably brilliant – and you have a screw loose. Who else after all would purposefully go to the (huge) bother of building and deploying a broadcast radio station under the risk of incurring a (huge) fine?
|
|
Read full article: 'Why Pirate Radio?' (4158 bytes more)
|
|
|
|
Login
Poll
Boing Collective
G20 / Not Our Friends
|